body{
   margin: 0;
}

.nav{
   position: fixed;
   top: 0;
   width: 100%;
   left: 0;
   height: 80px;
   border-bottom: 1px solid #f0f0f0;
   box-shadow: 2px 2px 5px #333;
   background: #fff;
}
nav{
   width: 990px;
   height: 80px;
   margin: 0 auto;
   display: flex;
   justify-content: space-between;
   align-items: center ;
}

nav a.logo{
   display: inline-block;
   width: 150px;
   height: 50px;
   background-image: url("../666.png");
}
nav div{
   color: #000;
}
nav div a{
   color: #ff0000;
   text-decoration: none;
}
.reg{
   width: 330px;
   height: 700px;
   margin:0 auto;
   margin-top: 300px; 
   display: flex;
   flex-direction: column;
   justify-content: space-around;
   align-items: center;

}
.reg div{
   width: 320px;
   height: 50px;
   display: flex;
}
.reg div label{
   display: inline-block;
   min-width: 98px;
   height: 48px;
   text-align: center;
   line-height: 48px;
   border: 1px solid#a0a0a0;
   color: #666;
}
.reg div input{
   height: 50px;
   flex-grow: 1;
   line-height: 48px;
   border: 1px solid#a0a0a0;
   outline: none;
   border-left: 0;
}
.reg div:nth-child(2) input{
   width: 120px;
}
.reg div .send-cod{
   display: inline-block;
   min-width: 98px;
   height: 48px;
   text-align: center;
   line-height: 48px;
   border: 1px solid#a0a0a0;
   color: #666;
   border-left: 0;
}
.reg .protocol{
   line-height: 50px;
   font-size: 14px;
   justify-items: flex-start;
}
.reg .protocol input{
   width: 16px;
   height: 16px;
   margin: 17px 4px;
   flex-grow: 0;
}
.reg .protocol a{
   text-decoration: none;
}
.btn-red{
   background: red;
   color: #fff;
   font-size: 22px;
   display: flex;
   justify-content: center;
   align-items: center;
} 
.reg .o-reg{
   justify-content: space-between;
   align-items: center;
}
.reg .o-reg a{
   text-decoration: none;
   color: #666;
}